.container {
    padding: 24px;
    height: calc(100vh - 64px);
    display: flex;
    flex-direction: column;
}

.top-section {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    min-height: 400px;
}

.mind-map {
    background: #fff;
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.description {
    background: #fff;
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}

.description textarea {
    flex: 1;
    border: none;
    padding: 8px;
    resize: none;
    font-size: 14px;
    line-height: 1.5;
}

.middle-area {
    height: 60px;
    position: relative;
    margin: 12px 0;
}

.create-btn {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 12px 24px;
    background: #1890ff;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

.create-btn:hover {
    background: #40a9ff;
    box-shadow: 0 4px 12px rgba(24,144,255,0.4);
}

.bottom-section {
    flex: 0 0 200px;
    background: #fff;
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: relative;
    margin-top: 24px; 
}

.input-demand {
    width: 100%;
    height: 100%;
    border: none;
    resize: none;
    font-size: 14px;
    line-height: 1.5;
    padding: 8px;
}
.confirmsub-btn {
    position: absolute;
    bottom: 16px;
    left: 16px;
    background: #f5f5f5;
    border: 1px solid #d9d9d9;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.confirmsub-btn:hover {
    background: #1890ff;
    color: white;
    border-color: #1890ff;
}
.upload-btn {
    position: absolute;
    bottom: 16px;
    right: 16px;
    background: #f5f5f5;
    border: 1px solid #d9d9d9;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.upload-btn:hover {
    background: #1890ff;
    color: white;
    border-color: #1890ff;
}